RockShox Seatpost Upper Piston 175mm 30.9/31.6mm Reverb AXS Model-SRAM Matchmaker model Lithion 4 size 700c

model Lithion 4 size 700c width 30mm compound Magi-X bead folding type non-tubeless color classic weight 292g

For competitions and recreational use

A proprietary extrusion and machined design provides an ultra thin true-concave profile that is only 13mm at platform center

and 12-speed chains except the Shimano 12-speed chain

lightweight DU bushing design with CrMo axles\n - 90 x 90 x 16

RockShox Seatpost Upper Piston 175mm 30.9/31.6mm Reverb AXS Model-SRAM Matchmaker model Lithion 4 size 700cSeatpost Upper Piston Assembly 30. 9 31. 6, 100mm (Includes Upper Piston Valve, Shaft) Reverb AXS B1+ (2026+) TECH SPECS Misc 30. 9 31. 6 175mm